EN 1.4424 Stainless Steel vs. SAE-AISI 1018 Steel
Both EN 1.4424 stainless steel and SAE-AISI 1018 steel are iron alloys. They have 71% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.4424 stainless steel and the bottom bar is SAE-AISI 1018 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 | |
| 130 to 140 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 28 | |
| 17 to 27 |
| Fatigue Strength, MPa | 350 to 370 | |
| 180 to 270 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 78 | |
| 73 |
| Shear Strength, MPa | 520 | |
| 280 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 800 | |
| 430 to 480 |
| Tensile Strength: Yield (Proof), MPa | 480 to 500 | |
| 240 to 400 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 960 | |
| 400 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1460 |
| Melting Onset (Solidus), °C | 1390 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 13 | |
| 52 |
| Thermal Expansion, µm/m-K | 12 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.2 | |
| 7.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.5 | |
| 8.0 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 15 | |
| 1.8 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 46 | |
| 18 |
| Embodied Water, L/kg | 140 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 190 to 200 | |
| 75 to 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 580 to 640 | |
| 150 to 430 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 29 | |
| 15 to 17 |
| Strength to Weight: Bending, points | 25 | |
| 16 to 17 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 14 |
| Thermal Shock Resistance, points | 23 | |
| 14 to 15 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.15 to 0.2 |
| Chromium (Cr), % | 18 to 19 | |
| 0 |
| Iron (Fe), % | 68.6 to 72.4 | |
| 98.8 to 99.25 |
| Manganese (Mn), % | 1.2 to 2.0 | |
| 0.6 to 0.9 |
| Molybdenum (Mo), % | 2.5 to 3.0 | |
| 0 |
| Nickel (Ni), % | 4.5 to 5.2 | |
| 0 |
| Nitrogen (N), % | 0.050 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 to 0.035 | |
| 0 to 0.040 |
| Silicon (Si), % | 1.4 to 2.0 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.050 |